Part of the reason for no response may be that your question is pretty vague. Also, I think the general "Dinner rec for Burlington" has been covered pretty well here ..... If there's something more specific you're looking for, then we probably can be of more help.

I'm not sure what you view as too expensive or formal but I'd recommend American Flatbread or the Daily Planet (haven't been there in a while). American Flatbread has expensive (15-20 for a bread that feeds 2) good flatbread with local ingredients when possible. Daily Planet is a solid moderately-priced restaurant usually with an interesting menu. There's also Single Pebble if you're looking for chinese. Some people rave about it, although I've never been a huge fan.

If you're looking for someplace fairly unique to Burlington, I'd say go for American Flatbread (although Al's or Beansie's would fall into this category too ......).